Matrix-molding device.



A. E. MARKWELL.

MATRIX MOLDING DEVICE.

APPLICATION FILED 11.17, 1913.

Patented Sept. 2, 1913.

Fig. 1

Fig. 4

Fig. 5

A l 8 1 x WITNESSES:

INVENTOR. Q 6W A TTORNE Y.

UNITED STATES PATENT" OFFICE.

ANDREW E. MARKWELL, or rear wonrn, TEXAS, ASSIGNOR or ONE-HALF T0 0. w.

STANTON, 01 Foam won'rn, TEXAS.

MATRIX-MOLDING DEVICE.

Specification 04. Letters Patent.

Patented Sept. 2, 1913.

To all. whom it may concern-.-

Be it known that I, ANDREW E. MAnK- WELL, a citizen of the UnitedStates, residing at Fort Worth, in the county of Tarrant and State ofTexas, have invented certain new and useful Improvements in Matrix-Molding Devices, of which the following is a specification. 1

My invention relates to improvements in. matrices and more particularlyto devices which are facsimiles in appearance to matrices and which areadapted to mold rule holding members on the top lines of lrne-' castslugs, and the object is to provide sunpiedevices which are carried bythe matrices or molding devices for forming rule re' taining memberswhich have angular grooves therein for holding printing rules in place;on type forms.

Another object is to provide such mold ing devices which have thegeneral form of.

matrices so that the molding devices can be. handled by line-castingmachines in the, same manner as matrices are handled.

Other objects 'and advantages will be: fully explained in the followingdescription; and the invention will be more particularly pointed out inthe claims.

Reference is had to the accompanying; drawings which form a part of thisappli-- cation.

Figure 1 is a side view of an enlarged view of a form which makes raisedportions; on the printing edges of slugs. Fig. 2 is a view of theopposite side of the same form. Fig. 3 is a view of the same in the samepo sition as in Fig. 2 but with the cover re-- moved toexpose theinterior cavity and the: movable part located in the cavity. Fig. 4- isan enlarged cross-section, taken on the line AA of Fig. 2. Fig. 5 is asimilar view to Fig. 4 with the forming device at the point ofseparation from the slug.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The forms consist of a bar 1 and cover 31 and the two parts togethermake facsimilesof the matrices used on linotypeand inter type orline-casting machines, having the same dimensions and other features asthe matrices in use and operable or capable of being handled bylinecasting machines now in use for handling such devices. These formsare set up in a line with ordinary matrices in order to cast a slughaving on its face the usual printing characters and also theprojections with grooves therein tor holding the printing rules. Acavity 2 is formed within the bar 1 and in order to make the cavity 2accessible, a part of the bar 1 is formed into a cover 3 which can befastened on the bar after the bar is provided with the operating deviceswithin the cavity 2.

The object of this invention is to form elevations 4 on the printingedge of linecast slugs 5 with under-cut orunde'r-beveled edges 6, thusforming grooves through the elevations 4 to receive printing rules andhold the same against displacement. The portions of the elevation-s oneach side of the groove form rule holders or rule holding members andthese members should be of less height from the top line of the slugthan the height of type or printing edge of the rule. These grooves willbe uniform so that when a type form is made upa rule can he horizontallyinserted from one side oi the type term. For accomplishing this :objectspring groove formers 7, having arms 8, are mounted within the matrixbars 1. Normally the spring groove former 7 is held within the bar L bya spring 9 which has one end rigidly secured to the bar 1 and the otherend resting loosely on the former 7 between the arms 8. The arms 8 haveangular grooves 10 at the upper edges and the bar 1 and the cover 3 arecut away as deep as the bottom edges of the grooves 10. The angulargrooves in the arms 8 and the cavities formed by the cut away por' tionsof the bar 1 and the cover 3 form the spaces tor molding therule-holders or rule-holding members 45. A portion of the bar I is leftbetween the ends 12 of the arms 8 to ilorm a bridge 11 for spacing theends 12 apart while the members 4 are being molded. The ends 12 and thebridge 11 serve to make the groove between the members '4 the properwidth. The molten material or metal for casting the members 4 and slug 5is forced in the molds by the action of the line casting machine incasting a slug while the arms 8 occupy the positions shown in Figs. 2,3, and 4. After the members 4 and the groove therein are formed on theslug, the slug 5 is'made to recede or is separated from the castingposition, and while receding the members 1 will draw the spring grooveformer 7 partly out of the bar 1 or molding device 1, as shown in Fig.5, until the ends 12 of the groove former 7 are far enough from thebridge 11 to allow the arms 8 to spring inwardly so that the ends 12will escape from the angular groove between the members 4;. As soon asthe ends 12 are released from the members 4, the spring 9 will draw theforming device 7 back within the molding device 1. The groove former 7will thus be drawn back to its normal position within the moldingdevice. The member 8 may be called a groove former or a rule-holderformer. In each action the members 4 are formed by the molding devicesand the groove former 8 will be partly withdrawn from the molding device1 by the members 4 of the slug 5 and will disappear within the moldingdevice as soon as released from the members 4 so that the molding device1 can be handled by the line-casting machine just as an ordinary matrixis handled.

It will be understood that the contour of the arms 8 with the grooves 10therein and the ends 12 can be changed and other changes in theconstruction can be made without departing from my invention.

What I claim, is,

1. A matrix molding-device provided with a cavity therein, a rule-holderformer mounted therein and having arms projecting from said cavity flushwith the surface of the molding device and being movable for releasingthe slugs and having angular grooves in the exterior surfaces thereof.

A matrix molding-device provided with a cavity therein, a rule-holderformer mounted therein provided with arms pro jecting therefrom and abridge spacing said arms apart, said arms having grooves in theirexterior faces and said former being movable between said bridge and thebottom of said cavity.

3. A matrix molding-device provided with a cavity therein, a rule-holderformer mounted therein provided with arms projecting therefrom and abridge spacing said arms apart, said arms having an ular grooves intheir exterior exposed sur aces.

4. A matrix molding-device having a cavity therein, a spring actuatedforming device mounted in said cavity and provided With arms projectingtherefrom for makink rule holding members on printing slugs,

said arms having grooves for forming bevel aces on the inside of therule holding memers.

5. A matrix molding-device provided with a cavity therein, a rule-holderformer mounted therein and provided with spring arms'projectingtherefrom, said arms having grooves in their exterior faces for formingbevel faces on the inside of the ruleholding members.

6. In a slug line-casting mechanism, a matrix having forming devicesmounted therein for forming bevel faced rule holding members on the typeline of slugs, said forming devices being movable for the purpose oreleasing said members when the slugs are being withdrawn.

7. In a slug-casting mechanism, a matrix having forming devices mountedtherein for forming bevel faced rule-holding members on the type line ofthe slugs, saidforming devices being adapted to be partly withdrawn fromthe matrix and means in said matrix for automatically retracting saidforming devices Within the matrix.

8. A matrix molding-device having a cavity therein, a groove formermounted therein and provided with spring arms projecting therefrom, saidarms having grooves in their exterior faces in the projecting portionsand said molding device having cut-outs adjacent to the projecting endsof said arms.

9. A matrix molding-device having a' mounted in said cavity for drawingsaid forming device back into normal position.

10. A matrix molding device having a cavity therein, a forming devicemounted therein and provided with spring arms projecting therefrom, abridge spacing the projecting portions of said arms apart, and aretractile spring in said cavity engaging said forming device.

11. A matrix molding-device having a cavity therein, a forming devicemounted therein for forming rule-holding members on the type line ofprinting slugs and provided with spring arms projecting therefrom, saidarms having angular grooves in their outer faces for receiving theforming elements, said forming device being movable by the rule-holdingmembers after they are formed, and a retractile spring for drawing theforming device back into said cavity.

12. A matrix molding-device having a cavity therein, a rule-holderformer mounted therein and provided with spring arms projectingtherefrom, said arms having angular grooves in their outer faces forreceiving the forming element, a bridge rigid with said matrixmolding-device, said bridge and the ends of said arms servin to form agroove through the rule holder with beveled walls facing each other, anda retractile spring in said cavity engaging said former.

In testimony whereof, I set my hand in the presence of two Witnesses,this 10th day of April, 1913.

ANDREW E. MARKVVELL. \Vitnesses:

A. L. JACKSON, P. W. MARKWELL.

